Subject aims expressed by acquired skills and competences

The main objective of this subject is to obtain knowledge in area of modeling of mechanisms and calculation of the kinematic and dynamic values during the motion. The attention is paid to calculation of the loads that are necessary for dimensioning of the individual mechanism’s parts as well as to simulations of the movement with the identification of the collision states. Lectures are held using CAD system Pro/Engineer.

Teaching methods

Lectures
Individual consultations
Tutorials
Project work

Summary

The course deals with methods of computing of kinematic values for the solution of the direct and inverse kinematic task of the mechanisms, computing of the dynamic values and loads during movement for purposes of the mechanisms dimensioning and simulation of the mechanisms movement and its collision states. Calculations and simulations are carried in CAD system Pro/Engineer.

Další požadavky na studenta

Prerequisities

Co-requisities

Subject has no co-requisities.

Subject syllabus:

1. Introduction of the Pro/Engineer Mechanism module, preparation of the mechanisms assembly to translation into Mechanism module.
2. Creation of mechanisms, basic types of connections of links, definition of the bodies, utilization of the user coordinate systems, definition of material properties.
3. Creation of the connections, types of connections, degrees of freedom and problem of redundancies, definition of initial conditions, basic connections – weld, pin, slider.
4. Extended connections – cylindrical, ball, bearing, planar.
5. Extended connections – free 6 DOF, general
6. Creation of the external loads, loading with the force, torque, gravitation.
7. Creation of the drives, types of drives, definition of the trajectories.
8. Internal measures – embedded measures, computed measures, their utilization and graphic expression
9. Creation of the contact areas, definition of the materials and their dumping
10. Creation of the cam-follower connection, definition of measures.
11. Creation of the gears, types of gears, utilization of the belt transmitions.
12. Types of embedded analyses, setting of the parameters, setting of the initial conditions, graphing of the results.
13. Animation of the mechanisms movement, investigation of the interferences among bodies.